Mysql Basic


  1. What represents a ‘tuple’ in a relational database?











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    NA

    Correct Option: C

    Each row in a table represents a record. A tuple is a collection of attribute values that makes a record unique. A tuple is a unique entity whereas attribute values can be duplicate in the table.


  1. What represents an ‘attribute’ in a relational database?











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    NA

    Correct Option: B

    Each column in a table represents a feature (attribute) of a record. Table stores the information for an entity whereas a row represents a record. Object has no relevance in an RDBMS.



  1. MySQL is freely available and is open source.











  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    MySQL is free and open source. It’s source code is available for use and is freely downloadable. It includes the MySQL Server, the world’s most popular open source database, and MySQL Cluster, a real-time, open source transactional database.


  1. What is data in a MySQL database organized into?











  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    Since MySQL is an RDBMS, it’s data is organised in tables for establishing relationships. A table is a collection of rows and columns, where each row is a record and columns describe the feature of records.



  1. Which type of database management system is MySQL?











  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    MySQL is a ‘relational’ DBMS. It is efficient at relating data in two different tables and joining information from them. Hierarchical and Network DBMS are based on parent-child relationships of records. Object-oriented DBMS use objects to represent models.